How to access commandbindings in c# WPF application?

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I'm using C# WPF application to display crystal reports and i want to call a function when crystal report viewer refresh button is clicked.

so in viewer properties i set command binding to refresh and application XAML looks like below

C++

<Grid>
    <cr:CrystalReportsViewer Name="reportViewer">
        <cr:CrystalReportsViewer.CommandBindings>
            <CommandBinding Command="NavigationCommands.Refresh"/>
        </cr:CrystalReportsViewer.CommandBindings>
    </cr:CrystalReportsViewer>
</Grid>

any idea how to capture this refresh event and call the command handler?

Regards

Posted 29-Jan-12 4:15am

gihanlasita

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Wonde Tadesse · Accepted Answer · 2012-01-29T06:18:00

Basically it's not only you need to bind the command but you need to associate events as well. For example

HTML

  <commandbinding command="ApplicationCommands.Close">
                  Executed="CloseCommandHandler"
                  CanExecute="CanExecuteHandler"/>
</commandbinding>

C#

// Create the CommandBinding.
CommandBinding CloseCommandBinding = new CommandBinding(
    ApplicationCommands.Close, CloseCommandHandler, CanExecuteHandler);

// Add the CommandBinding to the root Window.
RootWindow.CommandBindings.Add(CloseCommandBinding);

// Executed event handler.
private void CloseCommandHandler(object sender, ExecutedRoutedEventArgs e)
{
    // Calls a method to close the file and release resources.
    // Do something
}
// CanExecute event handler.
private void CanExecuteHandler(object sender, CanExecuteRoutedEventArgs e)
{   // If something is true then
    if (true)
        e.CanExecute = true;
    // If not, avoid execute
    else
        e.CanExecute = false;
}

For more how about reading the examples listed in the following MSDN article. Commanding Overview[^]